LG 42CS410 / 42CS410Y / 42CS411 / 42CS411Y (CHASSIS:LP24B) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV with
LP24B chassis.
2. Designation
(1) Because this is not a hot chassis, it is not necessary to
use an isolation transformer. However, the use of isolation
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 °C ± 5 °C of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep 100-220 V,
50/60Hz.
(5) The standard signal level is approved in 65 dBµV ± 1 dBµV.
(6) The receiver must be operated for over 5 minutes prior to
the adjustment when module is in the circumstance of
above 15 °C.
► In case of keeping module is in the circumstance of 0
°C, it should be placed in the circumstance of above 15
°C for 2 hours.
► In case of keeping module is in the circumstance of
below -20 °C, it should be placed in the circumstance of
above 15 °C for 3 hours.
3. PCB assembly adjustment method
3.1. Mstar Main S/W program download
3.1.1. Using D/L Jig
(1) Preliminary steps
1) Connect the download jig to D-sub(JK201) Jack.
(2) Download steps
1) Execute ‘ISP Tool’ program, the main window(Mstar ISP
utility Vx.x.x) will be opened.
2) Click the “Connect” button and confirm “Dialog Box”.
3) Click the “Config.” button and Change speed
I2C Speed setting : 350Khz~400Khz
4) Read and write bin file
Click “(1)Read” tab, and then load download file(XXXX.
bin) by clicking “Read”.
5) Click “(2)Auto” tab and set as below
6) Click “(3)Run”.
7) After downloading, you can see the “(4)Pass” message.
3.1.2. Using the Memory Stick
** USB DOWNLOAD : Service Mode
1) Insert the USB memory Stick to the USB port. (The file
name of bin file should start as “M8R…”. and Bin file
should not be encrypted)
2) Automatically detect the bin file and ask download or not.
G
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3) Press OK key then Message will be changed as below.
4) Plug off and on TV set, then you can see downloading
process.
5) Then, Plug off and on TV set again, and Download is
finished
3.2. Input tool option.
- Adjust tool option refer to the BOM.
■ Tool Option Input : PCBA Check Process
■ Area Option Input : Set Assembly Process
- After Input Tool Option and AC off
Before PCBA check, you have to change the Tool option and
have to AC off/on (Plug out and in)
(If missing this process, set can operate abnormally)
(1) Profile : Must be changed the option value because being
different with some setting value depend on module
maker, inch and market
(2) Equipment : adjustment remote control.
(3) Adjustment method
- The input methods are same as other chassis. (Use
IN-START key on the Adjust Remote control.)
(If not changed the option, the input menu can differ the
model spec.)
Refer to Job Expression of each main chassis ass’y
(EBTxxxxxxxx) for Option value.
*Caution: Don’t Press “IN-STOP” key after completing the
function inspection.
* Caution: Don’t connect HDMI cable when downloading the
EDID. If the cables are connected, Downloading of
edid could be failed.
3.3. EDID data
- EDID D/L method: The EDID data is automatically saved.
■ HD MODEL
3.4. ADC Calibration
3.4.1. ADC Calibration-Component
(Using External pattern)
* Required Equipments
■ Remote controller for adjustment
■ MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator
3.4.2. Process
(1) Change the Input to Component mode.
(2) Input the Component 480P@60 Hz 100% color Bar Y Pb
Pr signal into Component. (MSPG-925F Model: 212/
Pattern: 65)
(3) Press ADJ key on R/C for adjustment.
(4) Enter Password number. Password is “0413”.
(5) Select “Auto-RGB” and press OK(■) key.
(6) ADC adjustment is executed automatically.
(7) When ADC adjustment is finished, this OSD appear
“COMPONENT - OK”.
3.4.3. Confirmation
(1) Adjust by commanding AUTO_COLOR_ADJUST (0xF1)
0x00 0x02 instruction
(2) We confirm whether “0x77 (offset), 0x78 (gain)” address of
EEPROM “0xBE” is “0xAA” or not.
(3) If “0x77”, “0x78” address of EEPROM “0xBE” isn’t “0xAA”,
we adjust once more
(4) We can confirm the ADC values from “0x56~0x5B”
addresses in a page “0xBE”
3.4.4. EEPROM Address
G
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01
10 01 16 01 03 80 A0 5A 78 0A D9 B0 A3 57 49 9C 25
20
20
11
49 4B 21 08 00 01 01 45 40 61 40 01 01 81 80
30 01 01 D1 C0 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 08 44 21 00 00 1E 1B 21 50 A0 51 00 1E 30
50 48 88 35 00 BC 88 21 00 00 1C 00 00 00 FC 00 4C
60 47 20 54 56 0A 20 20 20 20 20 20 20 00 00 00 FD
70 00 3A 3F 1C 44 0F 00 0A 20 20 20 20 20 20 01 C2
80 02 03 25 F1 4F 90 07 01 16 02 03
40 45 00 08 44 21 00 00 1E 1B 21 50 A0 51 00 1E 30
50 48 88 35 00 BC 88 21 00 00 1C 00 00 00 FC 00 4C
60 47 20 54 56 0A 20 20 20 20 20 20 20 00 00 00 FD
70 00 3A 3F 1C 44 0F 00 0A 20 20 20 20 20 20 01 C2
80 02 03 25 F1 4F 90 07 01 16 02 03
11
12 13 04 14
90 05 20 22 1F 23 09 07 07 83 01 00 00 68 03 0C 00
A0 10 00 B8 2D 00 01 1D 00 80 51 D0 1C 20 40 80 35
B0 00 BC 88 21 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10
C0 3E 96 00 13 8E 21 00 00 18 8C 0A A0 14 51 F0 16
D0 00 26 7C 43 00 C4 8E 21 00 00 98 01 1D 80 18 71
E0 1C 16 20 58 2C 25 00 C4 8E 21 00 00 9E 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 E3
B0 00 BC 88 21 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10
C0 3E 96 00 13 8E 21 00 00 18 8C 0A A0 14 51 F0 16
D0 00 26 7C 43 00 C4 8E 21 00 00 98 01 1D 80 18 71
E0 1C 16 20 58 2C 25 00 C4 8E 21 00 00 9E 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 E3
EEPROM
Address
EEPROM Sub Address
0XBE
Red Gain
0X59
Green Gain
0X5A
Blue Gain
0X5B
Red Offset
0x56
Green Offset
0X57
Blue Offset
0X58
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3.5 Check SW Version
4.5.1 Method
(1) Push In-star key on Adjust remote-controller.
(2) SW Version check
Check “Main : Vx.xx” :
4. SET assembly adjustment method
4.1. Input Area-Option
(1) Profile : Must be changed the Area option value because
being different of each Country’s
(2) Equipment : adjustment remote control.
(3) Adjustment method
- The input methods are same as other chassis.(Use
IN-START key on the Adjust Remote control.)
Refer to Job Expression of each main chassis ass’y
(EBTxxxxxxxx) for Option value.
4.2. Adjustment of White Balance.
■ Purpose: Adjust the color temperature to reduce the
deviation of the module color temperature.
■ Principle: To adjust the white balance without the saturation,
Fix the one of R/G/B gain to C0 and decrease the others.
■ Adjustment mode : Three modes - Cool / Medium / Warm
(Medium data is automatically calibrated by the Cool data)
■ Adj. condition: normal temperature
1) Surrounding Temperature: 25 °C ± 5 °C
2) Warm-up time: About 5 Min
3) Surrounding Humidity: 20 % ~ 80 %
■ Required Equipment
■ Remote controller for adjustment
■ Color Analyzer : CA100+ or CA-210 or same product - LCD
TV(CH: 9), (should be used in the calibrated ch by CS-1000)
■ Auto W/B adjustment instrument (only for Auto adjustment)
4.2.1. Connecting diagram of equipment for measuring
(For Automatic Adjustment)
(1) Enter the adjustment mode of DDC
■ 22Set command delay time : 50ms
■ Enter the DDC adjustment mode at the same time heat-
run mode when pushing the power on by power only key)
■ Maintain the DDC adjustment mode with same condition
of Heat-run → Maintain after AC off/on in status of Heat-
run pattern display
(2) Release the DDC adjustment mode
■ Release the adjust mode after AC off/on or std-by off/on
in status of finishing the Hear-run mode.
■ Release the Adjust mode when receiving the aging off
command(WB 00 FF) from adjustment equipment.
■ Need to transmit the aging off command to TV set after
finishing the adjustment.
■ Check DDC adjust mode release by exit key and release
DDC adjust mode.
(3) Enter the adjust mode of white balance
■ Enter the white balance adjustment mode with aging
command(F3, 00, 00).
(4) Release the adjust mode of white balance
■ Enter the white balance adjustment mode with aging
command(F3, 00, FF)
* Luminance min value is 150cd in the Cool/Medium/Warm
mode(For LCD)
G
Tool Option
Area Option
Module
Maker
0 : CMI
1 : THTF
2 : LPL
Lang Group 0 : NONEU A
1 : NONEU H
2 : NONEU ALL
Inch
0 : 22” (Default)
1 : 23”
2 : 32”
Def. Lang
0 : ENGLISH
1 : CHINESE
2 : ESPANOL
3 : PORTUGUES
Frame
0 : LK230 (Default) TTX Group 0 : OFF
1 : ON
Module
Rev.
0 : Rev.0 (Default)
1 : Rev.1
I II SAVE
0 : OFF
1 : ON
HDEV
MONO
BlueBack
Country
MONO
BlueBack
Country
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4.3. Adjustment of White Balance
(for Manual adjustment)
■ Color analyzer(CA100+, CA210) should be used in the
calibrated ch by CS-1000
■ Operate the zero-calibration of the CA100+ or CA-210, then
stick sensor to the module when adjusting.
■ For manual adjustment, it is also possible by the following
sequence.
1) Select white pattern of heat-run by pressing “POWER
ON” key on remote control for adjustment then operate
heat run longer than 5 minutes. (If not executed this
step, the condition for W/B may be different.)
2) Push “Exit” key.
3) Change to the AV mode by remote control.
4) Input external pattern (85% white pattern)
5) Push the ADJ key two times (entering White Balance
mode) → Enter “0413” (Password)
6) Stick the sensor to the center of the screen and select
each items (Red/Green/Blue Gain and Offset) using
▲/▼(CH +/-) key on R/C..
7) Adjust R/ G/ B Gain using ◄/►(VOL +/-) key on R/C.
8) Adjust three modes all (Cool / Medium / Warm) : Fix the
one of R/G/B gain and change the others
9) When adjustment is completed, Exit adjustment mode
using EXIT key on R/C.
* CASE
First adjust the coordinate far away from the target value(x, y).
1) x, y > target
i) Decrease the R, G.
2) x, y < target
i) First decrease the B gain,
ii) Decrease the one of the others.
3) x > target , y < target
i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R
4) x < target , y > target
i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G
■ Standard color coordinate and temperature when using the
CA100+ or CA210 equipment (Small size inch’s color
coordinate is different from others, So use below table)
1) All Edge LED(except LGD), lamp over 26 and None
Edge LED(LGD Direct LED 42inch) and LGD Edge LED
26inch Over
Mode
Color coordinate
Temp
∆uv
x
y
Cool
0.271 ± 0.002
0.276 ± 0.002 13,000 K
0.000
Medium 0.287 ± 0.002
0.296 ± 0.002
9,300 K
0.000
Warm
0.315 ± 0.002
0.332 ± 0.002
6,500 K
0.003
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